| Acronym | Meaning |
| BARB | Ballast Aerating Retrieval Boom |
| PPO2 | Oxygen Partial Pressure |
| RCS | Reaction Control System |
| SAAMA | San Antonio Air Material Area |
| RSS | Rib Structure Station |
| DDM | Discrete Data Management |
| RDP | Requirements Development Plan |
| FDS | Flight Dynamics Software/System |
| CCRA | Cape Canaveral Reference Atmosphere |
| IOF | Initial Operational Flight |